CG Report - 04/09/2008 (Plain Text Version)View Graphical Version | Subscribe
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Editor... Bob Peterson, CGR, CAPS In this issue: Top 10 Energy-Efficient Remodeling Projects
Each of the PATH Remodeling Top 10 technologies chosen is rated on affordability, energy efficiency, ease of installation, quality and durability, environmental performance and safety. The top 10 technologies include: 1. Air Sealing — Four alternatives to conventional fiberglass insulation — non-fiberglass batts, sprayed foam insulation, sprayed fiber insulation and blown or foamed through a membrane — are recommended because they improve the thermal resistance of exterior walls. 2. Smartvent Ventilation/Ventilation Control System — This new mechanical ventilator provides an excellent compromise for deciding whether or not crawlspace should be ventilated, especially in humid climates. The system measures the moisture content of outdoor and crawlspace air and only provides ventilation when the outdoor air is drier than crawlspace air. The system prevents moisture from being added to the crawlspace due to ventilation. 3. HVAC Sizing ― Right-Sized HVAC — The Air Conditioning Contractors of America (ACCA) guidelines for sizing HVAC equipment, “ACCA Manual J Residential Load Calculation,” enables contractors to estimate heating and air conditioning loads more accurately so they can install properly-sized HVAC systems that ensure energy efficiency and optimum performance. 4. High Efficiency Toilets — Designed for water conservation, high efficiency toilets have been defined by the plumbing industry and the Environmental Protection Agency as those that use an average of 20% less water per flush than the industry standard of 1.6 gallons.
5. Compact Fluorescent Lighting — Compact fluorescent lamps (CFL), simply miniature versions of full-size fluorescent lights, are up to four times more efficient (using 50% to 80% less energy) and last up to 10 times longer than incandescent bulbs. A 22-watt CFL has about the same light output as a 100-watt incandescent. In addition, the warm tones of newer compact fluorescent lighting make it almost indistinguishable from incandescent lighting.
6. High Performance Windows/Storm Windows — Window technology has evolved over the years to the point where windows can be selected not only for their aesthetic qualities, but also for their performance abilities. Windows can be made from laminated glass that resists impact from flying debris in hurricanes, have special coatings that control the amount of heat gain and loss, or can prevent water spots and dirt accumulation. 7. Wireless Lighting, Thermostats and Other Controls — Derived from commercial construction but now available in homes, these controls can be set on timers or using a variety of sensors — temperature, occupancy, light detection and more ― with wireless systems to increase home efficiency without sacrificing home owner comfort. 8. Solar Hot Water — Solar water heaters come in a variety of configurations to meet domestic hot water needs. Each differs in design, cost, performance and level of complexity. Most systems have back-up water heating such as electricity or gas.
9. Recycled/Renewable Flooring — Two types of environmentally-conscious flooring lead the market ― recycled flooring from old structures and renewable flooring from fast-growing trees, such as bamboo.
10. Tubular Skylights — Tubular skylights use the sun for lighting interiors without the drawbacks associated with conventional skylights. They are generally easier to install than typical skylights and, from the home's interior, resemble conventional lighting fixtures.
For more information, visit the PATH Web site. For more information or to contact us directly, please visit www.NAHB.org | ©2008, National Association of Home Builders |